External (HOB)

Hang on Back overflows allow you to plumb your display tank to a sump or other filtration systems, without having to drill any holes in your aquarium. Using a siphon principal, external overflows will bring the water up and over the edge of your tank, before it travels down to your sump. Since the water is being pulled above your aquariums rim, we highly recommend water on floor sensors and a constantly running pump to ensure air does not build up in the overflow and stopping the siphon.
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7 Items

  1. PF-Nano, Nano overflow Box 10-20g Single Intake
    Eshopps
    PF-Nano HOB Overflow - Eshopps
    $89.98

    Earn 890 Reward Points Earn 445 Reward Points

    $89.98
  2. PF-300, 30-75g Single Intake
    Eshopps
    PF-300 HOB Overflow - Eshopps
    $102.99

    Earn 1,020 Reward Points Earn 510 Reward Points

    $102.99
  3. PF-800, 75-125g Single Intake
    Eshopps
    PF-800 HOB Overflow - Eshopps
    $112.99

    Earn 1,120 Reward Points Earn 560 Reward Points

    $112.99
  4. PF-1000, 125-150g Dual Intakes
    Eshopps
    PF-1000 HOB Overflow - Eshopps
    $126.99

    Earn 1,260 Reward Points Earn 630 Reward Points

    $126.99
  5. PF-1200 HOB Overflow - Eshopps
    Eshopps
    PF-1200 HOB Overflow - Eshopps
    $140.99

    Earn 1,400 Reward Points Earn 700 Reward Points

    $140.99
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